Below are some basic Filter Rules for Mikrotik BGP filtering. These are not complex and can be very easily implemented on your BGP peers.

Before we get to the code there are a few assumptions
1.Your own IP space in this example is 1.1.1.0/22
2.These filters are not fancy and are geared toward upstream ISPs, not your own internal routers or clients.
3.If you copy and paste the below code make sure there is one command per line. Some browsers will cut the line off and then it won’t paste right. If in doubt paste it into notepad, textedit, etc. and clean it up.Читать далее →

A desktop environment is useful for certain applications which require a full graphical desktop manager. For simplicity and security, ClearOS comes with only the graphical console for enough Webconfig components to enable remote administration through a web browser.

ClearOS is not designed for desktop managers and installing a full desktop is highly NOT recommended. This howto is only for proof of concept and should never be implemented in a production environment. In addition, only the Community Edition is supported (this will not work in the Home and Business Editions).

Preparation

You will need to install a great deal of packages and also be able to reboot the system. Because you will need to reboot, you can install the packages remotely over SSH or you can do so at the console by pressing Ctrl+Alt+F2.

Installing Packages

From command line, run the following:

yum update

The purpose of this command is to get the packages up to date from the subscription that you are working from. The installation of the ClearOS Desktop will update packages from additional repositories and you will want to ensure that your system is already up to date to limit the number of packages that will be sourced in your install.

Because different repos are involved in this process that are outside the repos included with your subscription, You may introduce bugs and anomalies that are not tested. As such, doing this next step may invalidate some of the support options that you are entitled to resulting in best effort support

I recently built a PC based on Intel’s latest Skylake CPU (i5-6500) and Z170 chipset (AsRock Z170 Pro4), and installed Ubuntu 15.10 on it. After setting up, however, I found that the kernel message buffer was flooded with this error message. This is how I fixed it.